This cable protector by Electriduct has a base constructed out of URETHANE with a durometer/hardness rating of 95A. The tensile strength is rated to 5500 psi giving it excellent dynamics. The lid is molded from URETHANE with a durometer/hardness rating of 65D. The tensile strength for the lid is rated to 4600 psi and is attached to the base using a PVC pin. Together, these materials and a tough structural design help make this cable protector economical while not compromising its function.